نتایج جستجو برای: fuzzy positive ideal solution fpis

تعداد نتایج: 1259570  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان 1390

the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...

Behnam Vahdani Sadigh Raissi, Seyed Meysam Mousavi, Seyed Mohammad Hossein

Risk response planning is one of the main phases in the project risk management and has major impacts on the success of a large-scale project. Since projects are unique, and risks are dynamic through the life of the projects, it is necessary to formulate responses of the important risks. The conventional approaches tend to be less effective in dealing with the impreciseness of risk response p...

2017
Daniel O. Aikhuele Faiz B. M. Turan Daniel O. AIKHUELE Faiz B. M. TURAN

In this paper, the Modified Technique for Order Preference by Similarity to the Ideal Solution (M-TOPSIS) model has been extended into the intuitionistic fuzzy environment. By applying the improved score function first, to represent the aggregated effect of positive and negative evaluations in the performance ratings of the alternatives based on interval-valued intuitionistic fuzzy set (IVIFS) ...

Journal: :Science Review 2021

The article is devoted to the problem of multi-criteria decision making. As application used equipment selection problem. analysis existing methods for solving this given. a method fuzzy TOPSIS (The Technique Order Preference by Similarity Ideal Solution) proposed. This based on ideal solution approach. issues practical implementation are discussed in details. results test at all stages present...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی شیراز - دانشکده مهندسی شیمی و نفت 1390

پدیده رسوب واکس در مخازن نفتی در مراحل مختلف عملیات تولید، انتقال و فرآوری مشاهده می شود. تشکیل واکس پدیده ای نامطلوب است زیرا منجر به انسداد خط لوله و تجهیزات عملیاتی می شود که در نتیجه سبب کاهش نرخ جریان و یا افت فشار زیاد می شود و به دلیل زمان وقفه تولید برای حذف آن بسیار پر هزینه است. راه حل های متفاوتی برای کاهش رسوب واکس پیشنهاد شده است که می توان به عایق کردن، تکنولوژی های تزریق مواد شیم...

Journal: :Expert Syst. Appl. 2012
Zhou-Jing Wang Kevin W. Li

10 This article proposes a framework to handle multiattribute group decision making 11 problems with incomplete pairwise comparison preference over decision alternatives 12 where qualitative and quantitative attribute values are furnished as linguistic variables 13 and crisp numbers, respectively. Attribute assessments are then converted to interval14 valued intuitionistic fuzzy numbers (IVIFNs...

Journal: :Nigerian Journal of Technology 2022

Multi-criteria decision model (MCDM) is used to describe a family of techniques which considers multiple criteria in order make choice (among several alternatives). Sometimes, both alternatives and involve qualitative definitions have be accounted for. Accordingly, fuzzy TOPSIS one MCDM methods it serves as scientific way solve selection problems that uncertainty definition. This work beverage ...

The aim of this paper is to introduce the notions of ($epsilon, epsilon vee q$)-fuzzy p-ideals, ($epsilon, epsilon vee q$)-fuzzy q-ideals and ($epsilon, epsilon vee q$)-fuzzy a-ideals in BCIalgebras and to investigate some of their properties. Several characterizationtheorems for these generalized fuzzy ideals are proved and the relationshipamong these generalized fuzzy ideals of BCI-algebras i...

2011
B. Davvaz

On the basis of the concept of grades of a fuzzy point to belongingness (∈) or quasi-coincident (q) or belongingness and quasi-coincident (∈ ∧q) or belongingness or quasi-coincident (∈ ∨q) in an intuitionistic fuzzy set of a ring, the notion of a (α,β )intuitionistic fuzzy subring and ideal is introduced by applying the Lukasiewicz 3-valued implication operator. Using the notion of fuzzy cut se...

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